Hi,
I have a Leaf ZE0 and have built an Arduino CAN (MPC2515) to read from the primary CAN bus (Github https://github.com/sfewings/emon_Suite/blob/master/emon_Leaf/emon_Leaf.ino) and publish on an internal house monitoring system; odometer (0x5C5), battery SOH, temperature, GIDs, dashboard...